A new route of using the mirabilite resources to produce alkali sulphide and then derive o-phenylenediamine was introduced .

u9752u6d77u7701u8292u785du8d44u6e90u4e30u5bccuff0cu672cu6587u4ecbu7ecdu4e86u4e00u79cdu5229u7528u9752u6d77u7701u8292u785du8d44u6e90u751fu4ea7 u786bu5316u78b1uff0cu518du914du5957u751fu4ea7u90bbu82efu4e8cu80fau7684u65b0u601du8defu3002

The methods of control of sulphide inclusions in S-bearing non-quenched-tempered steel manufactured byconverter are investigated in this paper .

u672cu6587u7814u7a76u4e86u8f6cu7089u751fu4ea7u542bu786bu975eu8c03u8d28u94a2u4e2d u786bu5316u7269u5939u6742u7684u63a7u5236u65b9u6cd5u3002

Study on bacterial leaching of copper sulphide ore from residual pillar at copper mine

u3010u91c7u77ff u3011u56deu6536u77ffu67f1u6cd5u94dcu77ffu5c71u6b8bu7559 u786bu5316u94dcu77ffu7ec6u83ccu6d78u51fau8bd5u9a8cu7814u7a76

In today 's chemistry class the teacher introduced the chemical components of hydrogen sulphide .

u4ecau5929u5316u5b66u8bfeu4e0auff0cu8001u5e08u4ecbu7ecdu4e86 u786bu5316u6c22u7684u5316u5b66u6210u5206u3002

In the nature the nickel mainly exists by sulphide ore and oxide ore.

u5728u81eau7136u754cu4e2duff0cu954du4e3bu8981u4ee5 u786bu5316u954du77ffu548cu6c27u5316u954du77ffu72b6u6001u5b58u5728u3002

Hydrogen sulphide bearing gas or water is postulated to be an important reductant in several areas .

u542b u786bu5316u6c22u7684u6c14u4f53u548cu6c34u88abu8ba4u4e3au662fu67d0u4e9bu5730u533au7684u4e00u79cdu4e3bu8981u7684u8fd8u539fu5242u3002

Air quality issues include emissions of ammonia hydrogen sulphide volatile organic compounds and dust .

u7a7au6c14u8d28u91cfu95eeu9898u5305u62ecu6c28u3001 u786bu5316u6c22u3001u6613u6325u53d1u7684u6709u673au5316u5408u7269u548cu7070u5c18u7684u6392u653eu3002

Study on flotation experiment of complex copper-lead-zinc polymetallic sulphide ore in high altitude area and its industrial

u9ad8u6d77u62d4u5730u533au590du6742u94dcu94c5u950cu591au91d1u5c5e u786bu5316u77ffu6d6eu9009u8bd5u9a8cu7814u7a76u53cau5e94u7528

Study on early-warning system for heavy metal pollution of water and soil in metal sulphide mining area

u91d1u5c5e u786bu5316u77ffu533au6c34u571fu91cdu91d1u5c5eu6c61u67d3u9884u8b66u7cfbu7edfu7684u7814u7a76

Cadmium sulphide or cadmium selenide in polymer based thin film transistor .

u805au5316u5408u7269u8584u819cu7535u6676u4f53u5185u7684 u786bu5316u9549u6216u7852u5316u9549u3002

The Proterozoic VMS Copper Deposit in Longmen Mountain Area of Chuanxi : Evidence from Sulphide Trace Element and Sulfur Isotope

u5dddu897fu9f99u95e8u5c71u5730u533au5143u53e4u4ee3VMSu94dcu77ffu5e8auff1a u786bu5316u7269u5faeu91cfu5143u7d20u548cu786bu540cu4f4du7d20u8bc1u636e

A rare soft orange mineral consisting of arsenic sulphide ; an important ore of arsenic .

u4e00u79cdu7a00u6709u7684u3001u8d28u5730u67d4u8f6fu7684u6a59u8272u77ffu7269uff0cu7531 u786bu5316u7837u7ec4u6210uff0cu662fu91cdu8981u7684u7837u77ffu77f3u3002

A steel gray metallic mineral ( a sulphide of lead and antimony ) .

u4e00u79cdu84ddu7070u8272u91d1u5c5eu77ffu7269uff08u94c5u548cu9511u7684 u786bu5316u7269uff09u3002

Study on Influence of Sulphide in Tailings on Quality of Backfill

u5c3eu7802u4e2d u786bu5316u7269u5bf9u5145u586bu4f53u8d28u91cfu5f71u54cdu7814u7a76

Flowsheet study of mineral processing technology for Deqin Yangla complicated copper sulphide ore is conducted in this paper .

u5bf9u5fb7u94a6u7f8au62c9u5d4cu5e03u590du6742u7684 u786bu5316u94dcu77ffu77f3u8fdbu884cu9009u77ffu5de5u827au6d41u7a0bu8bd5u9a8cu3002

In this dissertation the technology and fundamentals of pressure leaching of high iron-zinc sulphide concentrate and polymetallic sulphide ore are studied systematically .

u672cu8bbau6587u5bf9u9ad8u94c1 u786bu5316 u950cu7cbeu77ffu53cau591au91d1u5c5eu590du6742u786bu5316u77ffu7684u52a0u538bu6d78u51fau5de5u827au548cu7406u8bbau8fdbu884cu4e86u7cfbu7edfu7814u7a76u3002

A mineral ( iron-nickel sulphide ) that is the chief ore of nickel .

u4e00u79cdu77ffu7269uff08u94c1u954d u786bu5316u7269uff09uff0cu662fu954du7684u4e3bu8981u77ffu77f3u3002

It is often associated with polymetallic zinc sulphide ores and mainly enriched into zinc sulfide concentrates after beneficiation .

u94dfu662fu6211u56fdu7684u4e00u79cdu4f18u52bfu7a00u6563u91d1u5c5euff0cu5e38u4e0e u786bu5316u950c u591au91d1u5c5eu77ff u4f34u751fuff0cu7ecfu8fc7u9009u77ffu540euff0cu94dfu4e3bu8981u5bccu96c6u4e8eu786bu5316u950cu7cbeu77ffu4e2du3002

Taking copper sulphide mineral as study objects the studies of chalcopyrite heating and pressure pre-oxidation leaching process were conducted in acid system adding chloride .

u4ee5 u786bu5316u94dcu77ffu7269u4e3au7814u7a76u5bf9u8c61uff0cu5728u6dfbu52a0u6c2fu76d0u7684u9178u6027u4f53u7cfbu4e2duff0cu5f00u5c55u4e86u9ec4u94dcu77ffu52a0u6e29u3001u52a0u538bu9884u6c27u5316u6d78u51fau8fc7u7a0bu7814u7a76u3002

Many marine bacteria generate energy by oxidising the gas hydrogen sulphide which is common in ocean sediments .

u8bb8u591au6d77u6d0bu7ec6u83ccu901au8fc7u6c27u5316 u786bu5316u6c22u6765u751fu6210u80fdu91cfuff0cu8fd9u6837u7684u505au6cd5u5728u904du5e03u6c89u79efu7269u7684u5927u6d77u4e2du662fu5f88u5e38u89c1u7684u3002

According to the characteristics of copper sulphide ore the mineral processing flow-sheet and new reagent system were investigated and adjusted .

u9488u5bf9u6c5fu897f u67d0 u786bu5316u94dcu77ffu77f3u7684u7279u5f81uff0cu8fdbu884cu4e86u5408u7406u7684u9009u77ffu5de5u827au6d41u7a0bu548cu65b0u836fu5242u5236u5ea6u7684u7814u7a76u3002

Researchers then took saliva and tongue coating samples to measure bacteria levels and odour-causing compounds including hydrogen sulphide .

u7136u540eu7814u7a76u8005u4eecu63d0u53d6u4e86u4ed6u4eecu553eu6db2u548cu820cu82d4u7684u6837u672cuff0cu7528u4e8eu6d4bu91cfuff08u53e3u8154u5185u7684uff09u7ec6u83ccu6c34u5e73u548cu80fdu8bf1u53d1u5f02u5473u7684u5316u5408u7269uff0cu5982 u786bu5316u6c22u3002

And the sulphide mineral deposits lie directly on the sea floor .

u800c u786bu5316u7269u77ffu85cfu76f4u63a5u5750u843du5728u6d77u5e8au4e0au3002

Oil containing sulphur compounds especially hydrogen sulphide is known as sour oil .

u77f3u6cb9u542bu786bu5316u5408u7269uff0cu7279u522bu662f u786bu5316u6c22uff0cu88abu79f0u4e3au9178u6cb9u3002

It is found that the mixed flotation process of copper sulphide and copper oxide with the addition of mixed collector can realize the copper concentrate grading at16.08 % with a75.04 % recovery .

u91c7u7528 u786bu5316u94dcu548cu6c27u5316u94dcu6df7u5408u6d6eu9009u5de5u827auff0cu52a0u5165u6df7u5408u6355u6536u5242uff0cu6700u7ec8u5f97u5230u4e86u94dcu7cbeu77ffu54c1u4f4d16.08%uff0cu56deu6536u738775.04%u7684u6d6eu9009u6307u6807u3002

They found hydrogen sulphide levels decreased in 80 % of participants .

u4ed6u4eecu53d1u73b0u53d7u8bd5u8005 u53e3u8154u5185u7684 u786bu5316u6c22u542bu91cfu964du4f4eu4e8680%u3002

Study on the Petroleum & Sulphide Eliminate from Refinery Waste Residue and Alkaline Wastewater

u70bcu6cb9u5382u5e9fu6e23u78b1u6c34u53bbu9664u77f3u6cb9u7c7bu548c u786bu5316u7269u7684u8bd5u9a8cu7814u7a76

A third example is the ferrous sulphide which we mentioned in the previous chapter .

u7b2cu4e09u4e2au4f8bu5b50u662fu524du7ae0u63d0u5230u7684 u786bu5316u4e9au94c1u3002

The flotation is the common method to be used for separating Cu-Ni sulphide deposit .

u786bu5316u94dcu954du77ffu5e38u7528u7684u5206u9009u65b9u6cd5u662fu6d6eu9009u3002