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第289章 改变策略(1 / 2)

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过了几天,胡湘随四娘子出发了。

四娘子带了二百名护卫骑兵,其中有二十几名女子亲兵,还有十几辆马车,赵宁和四娘子坐在马车上。

走了十几天后,到达了泰安州,早有人通报了。当地的守城将领国安用已经在城门等候了。

这泰安城,胡湘来过两次了。而且这里除了胡家的秘密情报点外,还有负责采购硫磺胡家伙计。

胡湘来到泰安州,阿贵已经通知了胡家伙计和秘密情报人员。

“最近情况怎么样,硫磺的采购还顺利吧,”胡湘问道。

“回三少爷,现在泰安大汶口一带,开采的硫磺,除了忠义军自用的,大部分都是卖给我们的,不过现在的硫磺越来越不好开采了,”伙计说道。

通过了解,胡湘知道了,富含硫的矿,越来越少了,百斤矿石有时候才出不到一斤硫磺。

古代硫磺来源一是自然单质硫,二是硫的化合物(硫化铁),也就是后世的黄铁矿,也叫愚人金。

泰安这是单质硫,是和砂石成泥块状混在一起的。分离硫磺,是利用了硫磺容易液化和气化,硫的液化熔点是110°,沸点是446°,前提一定要隔绝空气。

具体是这样操作的,将泥块状的硫黄及矿石加热,到200摄氏度时,生硫磺熔化,过滤掉没有熔化的物质(可省略),继续加热,不断搅拌,使其中的部分杂质汽化蒸发掉,到400摄氏度硫磺沸腾,收集硫磺气体,将硫磺气体降温凝固,即可得到较纯净的硫磺。

因为泰安州的工匠,在提纯硫磺时候,很不规范,只是初步的提纯,是为了减轻重量,方便运输,所以胡家购买的硫磺,又再经过提纯,才能用于配置火药。

金国境内河南区域一般都是用黄铁矿制作硫磺。

(在明末宋应星所着《天工开物》中,较具体记述了用黄铁矿作原料烧取硫磺的技术,用碳还原硫出来,然后冷却硫磺蒸汽,得到硫磺。)

其实这个时期的硫磺也是这个方法制作的。

还有就是在中国单质硫很少,大部分都是硫矿都是硫的化合物存在。

看来以后,硫磺也需要再寻找多个来源了。

其实泰安的硫磺也见不得是少了,应该没有找到新的矿脉,或者应该埋藏很深,目前的技术开采不出来。

近现代开采矿,经常采用钻孔爆破方式,开采矿石,但胡家不可能给李全提供炸药,用于开矿的。

除非是胡家开采,目前胡家开矿,就利用了炸药。

胡湘也派人到武安,告知自己目前在泰安。

“少爷,明天我们也登山吗?”阿贵问道。

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